/*
 * imageUndoRedo.cxx
 *
 *  Created on: Sep 26, 2011
 *      Author: caceres
 */

#include "imageUndoRedo.h"

ImageUndoRedo::ImageUndoRedo() {
	this->m_ImagesDeque = new IDequeType();
}
//virtual
ImageUndoRedo::~ImageUndoRedo() {

}
//virtual
void ImageUndoRedo::Undo() {
	ImageInfoUR* imageInfo = this->m_ImagesDeque->Undo();
	if (imageInfo != NULL)
	{
		this->SetRedoImage(imageInfo->GetRegion());
		this->DrawUR(imageInfo);
	}
}
//virtual
void ImageUndoRedo::Redo() {
	ImageInfoUR* imageInfo = this->m_ImagesDeque->Redo();
	this->DrawUR(imageInfo);
}
void ImageUndoRedo::SetImage(VTKImageDataPointerType image) {
	this->m_CurrentImage = image;
	this->m_CurrentImage->Update();
	this->m_OriginalImage = VTKImageDataPointerType::New();
	this->m_OriginalImage->DeepCopy(m_CurrentImage);
}
//virtual
void ImageUndoRedo::SetUndoImage(const RegionSType& region) {
	VTKImageDataPointerType imgResult = this->GetImageRegion(region,
			this->m_OriginalImage);
	this->m_ImagesDeque->AddImageToUndoContainer(imgResult, region);
}
//virtual
void ImageUndoRedo::SetRedoImage(const RegionSType& region) {
	VTKImageDataPointerType imgResult = this->GetImageRegion(region,
			this->m_CurrentImage);
	this->m_ImagesDeque->AddImageToRedoContainer(imgResult, region);
}

ImageUndoRedo::VTKImageDataPointerType ImageUndoRedo::GetImageRegion(
		const RegionSType& region, VTKImageDataPointerType img) {
	VTKExtractVOIPointerType extract = VTKExtractVOIPointerType::New();
	VTKImageDataPointerType imgResult = VTKImageDataPointerType::New();
	extract->SetVOI(region.minX, region.maxX, region.minY, region.maxY,
			region.minZ, region.maxZ);
	extract->SetSampleRate(1, 1, 1);
	extract->SetInput(this->m_OriginalImage);
	imgResult = extract->GetOutput();
	return (imgResult);
}

void ImageUndoRedo::SetOriginalImage(VTKImageDataPointerType img) {
	this->m_OriginalImage = img;
}
void ImageUndoRedo::SetCurrentImage(VTKImageDataPointerType img) {
	this->m_CurrentImage = img;
}
//virtual
void ImageUndoRedo::DrawUR(ImageInfoUR* imageInfo) {
	VTKImageDataPointerType img = imageInfo->GetImage();
	for (int i = imageInfo->GetRegion().minX, x = 0;
			i <= imageInfo->GetRegion().maxX; i++, x++) {
		for (int j = imageInfo->GetRegion().minY, y = 0;
				j <= imageInfo->GetRegion().maxY; j++, y++) {
			for (int k = imageInfo->GetRegion().minZ, z = 0;
					k <= imageInfo->GetRegion().maxZ; k++, z++) {
				float value = img->GetScalarComponentAsFloat(i, j, k, 0);
				this->m_CurrentImage->SetScalarComponentFromFloat(i, j, k, 0,
						value);
			} //rof
		} //rof
	} //rof
	this->m_CurrentImage->Modified();
}